baber/WOPTO huggingface dataset:
Patent GB-860072-A (GB)
Title: Reverse acting gate valve
IPC: F16K3/36
Filed: 1957-05-15
Abstract: 860,072. Fluid-pressure servomotors ; valves. BUTLER, G. A. May 15, 1957 [Nov. 23, 1956], No. 15487/57. Class 135. In a rising stem gate valve having a pair of gate elements 30, 31, Fig. 1, urged apart by springs 32, 33 into engagement with removable seat members 22, 23, the sealing faces on the gate elements are located below the flow ports 34, 35 so that lowering the gate elements opens the valve and raising them closes it. Line pressure admitted to the valve chamber 11 due to the slight unseating of the upstream gate element regardless of the direction of flow through the valve acts upwardly on the valve stem 43 to assist closing of the valve. Each seat member is provided with a sealant reservoir 36 closed by a loose piston 41 acted upon by line pressure in the chamber 11 so that when the valve is closed the piston in the downstream seat member forces sealant through passages 80, 81 and an annular groove 82 in the seat member to seal the neck of that seat member. From the groove 82 the sealant flows through passages 83, 84, 85, 86, in the seat member gate element transfer recesses 89, 90, Fig. 6, and a circular groove 88 in the seat member surrounding the flow passage to form an effective seal between the seat member and gate element. The piston in the upstream gate member is unaffected since line pressure passing between the upstream gate element and its seat and transmitted to the underside of the piston is balanced by the pressure in the chamber 11 acting on the upper face of the piston. When the valve is opened the transfer recesses immediately isolate the sealant in the seat member passages from the circular groove 88 so that very little sealant is wasted. In another embodiment, instead of the gate being operated by a hand wheel 77 and the rising screwthreaded stem 43, pressure on the two sides of a restriction 132, Fig. 7, in a fluid-pressure line 134 acts on opposite sides of a diaphragm in an actuator 129 controlling a pilot valve 129g. When the pressure difference on the two sides of the restriction reaches a predetermined value the valve 129g opens to vent a chamber above a piston 123 mounted on the valve stem 160 so that the stem rises to close the valve. Line pressure being admitted to chambers above and below the piston 123 through the hollow valve stem and ports 23b, 19b. A rack and pinion 200, 201 is fitted at the top of the valve stem for direct mechanical operation of the valve.
Patent GB-986570-A (GB)
Title: Numerically controlled positioning system
IPC: G05B19/35
Filed: 1961-04-28
Abstract: 986,570. Milling; drilling. GIDDINGS & LEWIS MACHINE TOOL CO. April 28, 1961 [April 28, 1960], No. 15489/61. Headings B3B, B3C and B3K. [Also in Division G3] A machine tool for either point-to-point positioning or contouring under punched tape numerical control consists of a vertically adjustable tool holder 30, and a work-table 63 mounted on a cross-slide which is in turn carried on a saddle 21 riding on ways 71, 71. Each of the 3 movements is effected by a leadscrew selectively driven through a pair of electromagnetic reversing clutches from a gear-box in which seven electromagnetic clutches are provided to select 32 possible drive speeds. It is said as an alternative that solenoids may control a variable-speed hydraulic drive. Signals from the punched tape, or from manual controls energize five decades of position measuring resolvers which energize relays to cause the tool and/or workpiece to move to the commanded position at five successive feed rates. The feed rates for each axis are co-ordinated by interlocking relays. The maximum allowable speed may be varied by the programme to prevent overloading the cutter when contouring. The saddle may be locked to prevent accidental movement during a drilling operation.
Patent GB-1455038-A (GB)
Title: Collimating device for obtaining irradiation fields of any shape for high energy radiotherapy apparatus circuit predetermined time
IPC: G21K1/02
Filed: 1974-04-08
Abstract: 1455038 Radiology CGR-MEV 8 April 1974 10 April 1973 15548/74 Heading H5R A device for collimating high-energy particles from a source S having a primary collimator 11 consists of a block 7 of a material having a low absorption, e.g. polystyrene, surrounded by mercury 12 in a container 2, the block 7 being of a shape such as to define the desired beam crosssection. The level of mercury is maintained from a master container 1 via a pipe 5 and intermediate container 6. To locate the block 7 precisely it can be secured to a plate 8 of polymethyl methacrylate. The source and collimater can be inverted as shown in dotted lines. The mercury can be covered with a layer of water and detergent to isolate it from the atmosphere. The two containers can be raised at either of two speeds and automatically stopped when in the correct position.
Patent GB-416522-A (GB)
Title: Improvements relating to grids for openers and cleaners for textile fibres
IPC: D01G9/00
Filed: 1933-05-30
Abstract: 416,522. Grids for openers or cleaners. NEWELL, W., TOMLINSON, H., and TWEEDALES & SMALLEY (1920), Ltd., Globe Works, Castleton, near Manchester. May 30, 1933, No. 15551. [Class 120 (i).] In a vertical, cylindrical, or conical grid for openers and cleaners for textile fibres of the kind in which bars D, Figs. 1 and 2, of angular cross section are rotatably supported by pins d projecting into stationary rings A, B a ring C formed around its inner edge with notches c adapted to engage the outer angular portions of the bars D is provided for adjusting the angular setting of the bars D. The ring C is rotatably mounted immediately below the upper ring A and is displaced clockwise or anticlockwise to rotate the bars D by means of a screw G engaging a swivelling nut F secured to the underside of the ring C by a bracket E.
Patent GB-1403177-A (GB)
Title: Dashpots
IPC: G03B27/52
Filed: 1973-03-30
Abstract: 1403177 Line-by-line scanning XEROX CORP 30 March 1973 15565/73 Heading G2A [Also in Division F2 ]  In a line-by-line scanning system employing a reciprocatory carriage carrying a mirror, the return stroke of the carriage is dampened by a dashpot. In one form, Fig. 3, a compression spring 52 is situated between a cup-shaped piston 45 and the dampening end of a cylinder 41, the cylinder having an adjustable bleed jet 48 at the dampening end, a plurality of apertures (of diminishing size towards the dampening end) in its side wall, and a plurality of apertures 54 in the non-dampening end wall of the cylinder (through which a piston rod 46 passes). Rod 46 is in contact with a flange member 22 a connected to a carriage 22 carrying a mirror (13), Fig. 1 (not shown) and driven by a capstan (31). A further mirror (12) is carried by a further carriage (21) having an end stop (34) and being driven by a further capstan (27). The capstans have a common drive-shaft (28) and solenoid-actuated clutch and are spring-biased to the start of scan position. In another form Fig. 4, (not shown) a hollow piston-rod is axially aligned with and is connected to carriage 22, no dampening spring being present and the non-dampening end of the cylinder being open. The piston may be withdrawn from the cylinder at the end of the scanning stroke and dampening may commence on reinsertion of the piston. In a further form, Fig. 5, rod 46 passes through the dampening end of cylinder 41 and the dashpot acts by means of a cable 61 on the buffered carriage (21). The dashpot may have an open non-dampening end and the bleed jet may be replaced by an imperfect seal around rod 46.
Patent GB-515351-A (GB)
Title: Improvements in or relating to the production of dry starch products suitable for the preparation of blancmanges, puddings and the like by swelling in cold water
IPC: A23L1/0522
Filed: 1938-05-25
Abstract: 515,351. Starch. SALZBURG, A. A. May 25, 1938, Nos. 15604, and 30820. [Class 121] [Also in Group VI] A starch product from which blanc-niange pudding, creams, custards or sauces can be made by stirring with cold water is obtained by drying in finely-divided condition, as by spraying in hot air, a paste made by treating starch with hot water and/or milk at a temperature below 100‹C. The starch used may be that obtained from cereals, e.g. maize, wheat, rye or rice starch. The paste may be made at temperatures ranging from 73‹ to 88‹C.
Patent GB-1134342-A (GB)
Title: Vacuum control particularly for a tape loop box
IPC: G05D16/20
Filed: 1966-04-07
Abstract: 1,134,342. Automatic pressure control. SPERRY RAND CORP. April 7, 1966 [April 23, 1965], No.15634/66. Heading G3R. When the pressure in a low-pressure area 14 between the bottom surface of magnetic tape 12 and loop-box 10 drops below a predetermined value, vacuum switch 48 is held open to interrupt the gating circuit of silicon controlled rectifier 22. Series motor 18 is de-energized so that vacuum pump 16 decelerates to permit the pressure in the area 14 to increase. The vacuum switch 48 remains closed to render the rectifier 22 conductive when the pressure in the area 14 rises. The speed of the vacuum pump is thus increased to reduce the pressure below the tape the upper side of which is subjected to atmospheric pressure. The vacuum switch unit comprises a flexible diaphragm separating two chambers one of which is exposed to atmosphere and the other is connected to the area 14 of the tape loop-box. The pressure at which the switch 48 is actuated is set by the position of an adjustable leakage valve 46.
Patent GB-1008763-A (GB)
Title: Arrangement for transferring numerical values from electronic counting registers to mechanical printers or counters
Inventor: GORNER WOLFGANG
IPC: B41J1/12
Filed: 1962-04-25
Abstract: 1,008,763. Output arrangements for electronic calculators. BUCHUNGSMASCHINENWERK KARL-MARX-STADT VEB. April 25, 1962, No. 15735/62. Heading G4A. The differential rack bars of mechanical calculating apparatus (which may also control printing mechanism) are set from electronic decimal counting registers which may contain positive or negative numbers by the use of the double rack and pinion slides shown. Cams 12, 13 controlled by the sign of a multi-digit decimal number in the electronic registers (a negative number being represented by its 9's complement) move a frame 4 either upwardly or downwardly according as it is positive or negative, but ratchet members 5 (one for each decimal order of slides) supported in the frame by springs 6 are prevented from moving to engage a rack 1<SP>11</SP> or 211 by a locking device 7. A member 33 pivoted at 30 is urged by springs 32 to engage a rack 2<SP>1</SP> or 1<SP>1</SP> of each order. Ten pulses are now supplied to each of the stages of the electronic register, and at the same time pinion 3 is moved rearwardly so that the upper or lower rack 1<SP>1</SP> or 2<SP>1</SP> is also forced rearwardly, until one of the electronic registers is counted up to zero, when an electromagnet releases the device 7 to allow members 5 to engage the rack 1<SP>11</SP> or 2<SP>11</SP>. As the pinion 3 continues to move, member 33 being spring-loaded, now yields to allow the other slide to move, so that the actual contents of the decimal order electronic register is set into one of the slides and its complement into the other. This enables the true numerical values to be set into the lower slides when the number if negative.
Patent GB-212801-A (GB)
Title: Improvements in machines for lining tins with paper bags
IPC: B65B43/48
Filed: 1923-06-18
Abstract: 212,801. Strong, A. G. O. June 18, 1923. Paper bags, making.-In a machine for making paper-lining bags and inserting them into tins, the bags are carried forward from the former 17, on which they are made, by a member 16 to the tin to be lined. A guide block 18 aligns the bag in its passage into the tin, and when level-lid or similar tins are being treated the block may be corrugated, so that the bag is pleated and reduced in diameter to pass through the restricted mouth-opening. Specification 17496/98 is referred to.
Patent GB-877292-A (GB)
Title: Improvements in or relating to dry rectifier stack assemblies
Inventor: MARROW SIDNEY HUGHES
IPC: H01L25/03
Filed: 1958-05-16
Abstract: 877,292. Semi-conductor rectifiers. STANDARD TELEPHONES & CABLES Ltd. May 16, 1958, No. 15792/58. Addition to 807,637. Class 37. A dry rectifier assembly comprises a rectangular metal casing 1, the base of which has coplanar lugs 2 drilled for fixture in good heatconducting contact to a flat metal support, the internal surfaces of the casing being coated with a film 22 of an electrically insulating, heat conducting material, and a stack of rectifier plates 31 and terminal plates 32 being fitted tightly within the casing and impregnated after assembly with a heat conducting thermoplastic or thermosetting material. The casing may be formed from a single piece of aluminium which has a coating of polyethylene or polyvinyl-chloride on one side, or it may be die-cast from light alloy, the internal surfaces being coated in known manner. In view of the risk of insulation breakdown at the internal corners of the casing, the sides parallel with the rectifier and terminal plates may be dished inwards as at 23, to provide outstanding flats on the coated sides.
Patent GB-143079-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M7/06
Filed: 1919-06-24
Abstract: 143,079. Negro, G., and Tacco, A. June 24,1919. Spray carburettors.-A fuel reservoir for starting is of adjustable capacity and is arranged directly below the spray nozzle; air may be admitted to the reservoir through an adjustable inlet. Fig. 2 shows the reservoir 109 supplied from the float chamber by a passage 104 and adjusted in capacity by a screwed plug 121, which is replaced, in another form, bv a number of metal cylinders, more or less of which are introduced into the reservoir to alter its fuel capacity; a piston device may, alternatively, be used. For slow running, a by-pass 114 leads from the reservoir 109 to a port 115, by which air also enters the induction pipe under the control of a screw 117; a screw 118 regulates the flow of fuel from the passage 114 to the port 115. Fig. 3 shows diagrammatically the same parts with the addition of the air inlet 125 to the reservoir, having a permanent adjustment 126 and also, particularly in the case of aircraft, a separate hand control 127.
Patent GB-1012658-A (GB)
Title: Process for making sustained release forms of medicaments
IPC: C08B3/12
Filed: 1964-04-17
Abstract: Sparingly soluble complexes of spiramycin or dextromethorphan with cellulose acetate hydrogen phthalate are prepared by reacting the two components in solution in one or more organic solvents, and separating the resulting precipitate.  The polymer is preferably used in molar excess.  The solvents used are acetone methyl ethyl ketone, dioxan, or a 1 : 1 mixture of methanol and benzene.  Other solvents mentioned are: diacetone alcohol; 1 : 1-methanol with acetone; 3 : 1-methanol with acetone; 1 : 1-ethyl acetate with isopropanol; and furfuryl alcohol.  Ethyl cellulose may also be used as a polymer. The complexes are for use as sustained release forms of the particular drugs, and also are useful due to better palatability (see Division A5).ALSO:Solid complexes of spiramycin or dextromethorphan with an acid-reactant cellulose derivative are prepared by reacting solutions, in one or more organic solvents, of the drug and the cellulose derivative, and separating the precipitated complex. The cellulose derivative is preferably cellulose acetate hydrogen phthalate, or ethyl cellulose.  Suitable solvents are acetone, methyl ethyl ketone, diacetone alcohol, dioxane, and furfuryl alcohol, or mixtures thereof.  The complexes are for use in sustained release forms.
Patent GB-272917-A (GB)
Title: Improvements in or relating to multiple copy milling machines
IPC: B23Q35/20
Filed: 1927-06-15
Abstract: 272,917. Romanoff, H. June 15, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Milling-machines. -- In a milling-machine for reproducing profiled articles from a templet, the movements of one or more tools are controlled by means of a pantograph, the tracer of which is moved positively round the templet by means of a pinion driven from the tracer spindle and moving along a path of similar contour to that of the templet. The pantograph consists of a main arm 1 pivoted on a fixed spindle 2 and jointed at 4 and 5 to parallel arms 12, 13. The arm 15, carrying the tracer spindle 44, is jointed at 3 to the main arm and at 14 to the arm 13. The pin 18 forming the joint 3 is provided with a ball end 20 which slides over the table 17. An electro-motor 27 mounted over the pivot 14 is arranged to drive four tools 24 and the tracer spindle 44 by belt gearing as shown in Fig. 2. The tool spindles are carried in bearings 21 22 and are provided with means 23 for adjusting the height of the. tools. The tracer spindle carries a loose roller 46 engaging a templet 47 which is secured to the table by bolts 48. A spring device consisting of a pivoted plate 50 connected through springs 53 with an upper plate 49 loosely mounted on the tracer spindle ensures that the roller is kept in constant engagement with the templet. The tracer-spindle drives through reducing gearing 54 an eccentric pinion 55 engaging a series of pins 56 having the same pitch as the pinion teeth and forming a curve which is equidistant from the projected outline of the templet. Lubrication of the cutters is effected from a pump 58 pivoted on the arm 15, the plunger 60 being operated from an eccentric 61 on the tracer-spindle. The lubrieant is conveyed to the tools from the opening 62 through flexible tubing and is returned to the pump from a reservoir.
Patent GB-270114-A (GB)
Title: Improvements in or relating to beer pumps
IPC: B67D1/02
Filed: 1926-06-25
Abstract: 270,114. Schroeder, H. June 25, 1926. Securing. - The handles 1 of beer pumps are fitted with tablets 2 marked with the price, quality, brand, &c., of the beer supplied, and, to prevent mistakes, the pipes 3 leading from the barrels to the pumps carry discs 5 bearing the respective numbers of the pumps to which the pipes are connected. The discs 5 are secured to the pipes 3 by wire clips 4 locked by metal seals 6.
Patent GB-991248-A (GB)
Title: Improvements relating to amphibious craft
IPC: B60F3/00
Filed: 1961-05-03
Abstract: 991,248. Amphibious craft. P. R. V. YOUNGMAN. Aug. 2, 1962 [May 3, 1961], No. 15986/61. Heading B7A. An amphibious track-laying craft or ferry has a buoyant track comprising an endless band 1 carrying buoyant elements 13 which may be solid or be gas-filled envelopes. The band 1 passes round end sprockets, or drums 2A, 2B, and support drums 3 which may serve as floats, supported by a chassis 4 which may also be made to provide buoyancy. The drum 2B is rotated via transmission gear 9 by a power unit 8. The buoyant elements 13 support the craft above the water level. The invention may be applied to a ferry.
Patent GB-1531918-A (GB)
Title: Mass transfer columns
IPC: B01D3/16
Filed: 1976-04-20
Abstract: The mass transfer column chiefly serves for the deuterium exchange between hydrogen and methylamine. It is provided with a plurality of transfer devices (2) arranged one above the other in a pressure pipe (1), each of which transfer devices is composed of reaction chambers (3). At the top end, the reaction chambers (3) of each transfer device (2) open towards a separation chamber (6), in which separation of the gaseous hydrogen from the liquid methylamine takes place. For transport of the gaseous hydrogen from the respective lower transfer device (2) into the transfer device (2) situated above, there serves within the pressure pipe (1) in each case a jet pump (4) assigned to a reaction chamber. The transport of the liquid methylamine from the respective upper transfer device (2) into the respective transfer device (2) situated beneath proceeds by means of pumps (9) arranged in lines (10), which pumps simultaneously force a higher pressure increase on the downwards-flowing liquid methylamine than that corresponding to the static pressure increase in a liquid column existing between two transfer devices (2). The reaction chambers (3) are provided with gas- and liquid-permeable packings (5), which are composed of coiled webs of wire cloth. This packing (5) serves to improve considerably the mass transfer between liquid and gas. <IMAGE>
Patent GB-1134915-A (GB)
Title: Nail package
IPC: B25C1/00
Filed: 1967-04-07
Abstract: 1,134,915. Nail package. SENCO PRODUCTS Inc. 7 April, 1967 [8 April, 1966], No. 16012/67. Heading B8C. Nails are secured together into a strip with their points alternately extending in opposite directions so that they may be made into a roll, Fig. 2 (not shown), in closely packed relationship. Securing may be done by one flexible frangible wire, Fig. 3 (not shown), in a zig-zag pattern welded or the like to each nail shank, or by two wires 21, 23 as shown, so that in a nail driving machine each nail can be turned through 90 degrees to make all the nail points adjacent, and the wires of the zig-zag pulled straight to separate the nails for use, Figs. 4, 6 (not shown). There may be zones of weakness in the wire so that it breaks easily when the nails are driven in.
Patent GB-960026-A (GB)
Title: Selective conversion of normal paraffins
IPC: C10G25/03
Filed: 1962-04-26
Abstract: The normal paraffin content of an hydrocarbon oil is reduced by contacting the oil in the vapour phase at 800-1100 DEG F. with a crystalline metallic aluminosilicate having uniform pore spaces of about 5 <\>rA, and withdrawing therefrom a vapour stream having a reduced normal paraffin content and an increased olefin and light hydrocarbon content. The contacting may be effected at a pressure of 50 mm. Hg.-10 atmosphere, if desired in the presence of hydrogen, nitrogen, carbon dioxide, or an inert gas, having a molecular diameter of less than 5 <\>rA.  The withdrawn vapour stream may be separated in fractions boiling above and below 100 DEG  F.  The sieve may be regenerated by an oxygen containing gas, preferably preheated to 500-800 DEG  F.
Patent GB-877850-A (GB)
Title: Improvements in or relating to marine propulsion apparatus
IPC: B63H11/11
Filed: 1958-05-20
Abstract: 877,850. Propelling and manoeuvring ships. HAMILTON & CO. Ltd., C. W. F. May 20, 1958 [May 20, 1957], No. 16141/58. Class 114. A marine propulsion apparatus of the type comprising preferably a two-stage pump which draws water from outside the boat and delivers it through a jet nozzle 18 has a vertically adjustable control member 14, supported in guides 15, having a concavity 17 at its lower end. In the position shown the jet of water is directed along the lines 21 to cause the boat to go astern in which position the outlet from the nozzle 18 is reduced. By movement of the control member 14 the nozzle 18 may be closed completely or opened completely in which latter position the discharging water propels the boat forwards the steering being achieved by a member 25 in known manner.
Patent GB-833538-A (GB)
Title: Improvements in or relating to supplying coolant to a dressing diamond or like tool in a grinding machine
IPC: B24B55/02
Filed: 1957-05-22
Abstract: 833,538. Dressing grinding wheels. COMPAGNIE DES MACHINES BULL. May 22, 1957 [May 28, 1956], No. 16225/57. Class 60. A device for cooling a diamond 4 or like tool used to dress a grinding wheel 13 comprises a ring-shaped member 6 which is mounted on and around a part 5 carrying the diamond or like tool and formed with an inner groove 10 to ensure that liquid supplied from a pipe 11 flows around the end of the part 5 and on to the diamond or like tool. When used to dress the grinding wheel 13 of a surface grinder, the part 5 is mounted on a block 2 secured to the table 1 of the machine by a nut and bolt 3. The ring 6 is secured to the part 5 by a screw 12 and is formed with its lower portion in close engagement with the part 5 and its upper portion spaced from the part by radial arms 9 extending across the groove 10 and between which the liquid from the pipe 11 passes to the diamond 4.